AI-generated Key Takeaways
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          ReportHeader groups data to treat generated reports and is always sent as the first message in a stream response. 
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          The ReportHeader includes the dateRangeobject, which indicates the date range for the report.
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          The localizationSettingsobject in the ReportHeader provides the localization settings used for the report.
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          The ReportHeader contains the reportingTimeZonestring, specifying the time zone used for the report data.
Groups data helps to treat the generated report. Always sent as a first message in the stream response.
| JSON representation | 
|---|
| { "dateRange": { object ( | 
| Fields | |
|---|---|
| dateRange | 
 The date range for which the report is generated. This is identical to the range specified in the report request. | 
| localizationSettings | 
 Localization settings of the report. This is identical to the settings in the report request. | 
| reportingTimeZone | 
 The report time zone. The value is a time-zone ID as specified by the CLDR project, for example, "America/Los_Angeles". |